Affichage des archives de jeudi, 12 novembre 2015

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2015 Nov 12 1230 UTC

Prévisions SIDC

Éruptions solaires

C-class flares expected, (probability >=50%)

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
12 Nov 2015	105	009
13 Nov 2015	106	010
14 Nov 2015	107	011

Bulletin

Over the past 24 hours solar activity has been low, there have been no C-class or M-class flares recorded. NOAA Active Region (AR) 2452 (Axx/alpha) rotated into view and was numbered, it appears quite stable. All other regions have remained stable with little flux emergence. There were no Earth directed Coronal Mass Ejections (CMEs) observed in the past 24 hours. The solar wind speed has steadily declined over the past 24 hours, from 650 km /s to around 500 km /s. The total magnetic field has fluctuated between 2 and 5 nT and the Bz component has oscillated between -4 nT and +4 nT. Geomagnetic conditions ranged between quiet and active over the past 24 hours (NOAA Kp 1-5, local K Dourbes 0-4). Geo-activity reached storm levels (Kp 5) around 18:00 UT yesterday (2015-Nov-11), which was possibly caused by the trailing edge of the High Speed Stream (HSS) or a glancing blow from the CME generated on 2015-Nov-09.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 063, sur la base de 15 stations.

Indices solaires pour 11 Nov 2015

Nombre de Wolf, observé par Catania	098
Flux solaire à 10 cm	105
AK Chambon La Forêt	031
AK Wingst	024
Ap estimé	027
Nombre international de taches solaires estimé	064 - Basé sur 18 stations

Résumé des événements marquants

Données fournies par le Solar Influences Data analysis Center© - SIDC - Traité par SpaceWeatherLive

Toutes les heures sont indiquées en UTC

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